package com.learn.callback.level3;

/**
 * <p>项目名称: design-pattern </p>
 *
 * <p>文件名称: App </p>
 */
public class App {

    public static void main(String[] args) {
        SimpleCallback callback = new SimpleCallback();
        SimpleTask task = new SimpleTask();
        callback.setTask(task);
        callback.work();
    }
}
